December weather forecast
Plymouth, MN

Weather in December

December, the first month of the winter in Plymouth, is also a subzero cold month, with an average temperature varying between 25.3°F (-3.7°C) and 15.3°F (-9.3°C).

Temperature

In December, the average high-temperature significantly decreases from a cold 40.1°F (4.5°C) in November to a freezing cold 25.3°F (-3.7°C). In Plymouth, Minnesota, the average low-temperature is 15.3°F (-9.3°C).

Humidity

The average relative humidity in December in Plymouth is 87%.

Rainfall

In Plymouth, Minnesota, during December, the rain falls for 3.4 days and regularly aggregates up to 0.98" (25mm) of precipitation. In Plymouth, during the entire year, the rain falls for 113.9 days and collects up to 20.24" (514mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 12.6 days and typically aggregates up to 4.45" (113mm) of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 50min of daylight.
On the first day of December in Plymouth, sunrise is at 7:32 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 4:41 pm CST.

Sunshine

The average sunshine in December is 3.3h.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 1 in December interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in December in Plymouth?

The average relative humidity in December in Plymouth is 87%.

How many days does it rain in December in Plymouth?

In December, in Plymouth, Minnesota, the rain falls for 3.4 days. Throughout December, 0.98" (25mm) of precipitation is accumulated.

What is the snowiest month in Plymouth?

December is the month with the most snowfall in Plymouth, Minnesota. Snow falls for 12.6 days and accumulates 4.45" (113mm) of snow.

How much does it snow in Plymouth in December?

In Plymouth, Minnesota, in December, snow falls for 12.6 days, with typically accumulated 4.45" (113mm) of snow.

What is the month with the shortest days in Plymouth?

With an average of 8h and 50min of daylight, December has the shortest days of the year in Plymouth, Minnesota.

How many hours of daylight does Plymouth have in December?

In December, the average day length in Plymouth, Minnesota, is 8h and 50min.

What time are sunrise and sunset in December in Plymouth?

On the first day of December in Plymouth, Minnesota, sunrise is at 7:32 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 4:41 pm CST.

How many hours of sunshine does Plymouth have in December?

In Plymouth, Minnesota, the average sunshine duration in December is 3.3h.

When is the lowest UV index in Plymouth?

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index reading in December in Plymouth?

The average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Plymouth, MN

Average temperature in December - Plymouth, MN
  • Average high temperature in December: 25.3°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (20.1°F).

  • Average low temperature in December: 15.3°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).

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Average pressure in December
Plymouth, MN

Average pressure in December - Plymouth, MN
  • Average pressure in December: 30.11"Hg

The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in December
Plymouth, MN

Average wind speed in December - Plymouth, MN
  • Average wind speed in December: 8mph

The windiest month (with the highest average wind speed) is April (9.2mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

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Average humidity in December
Plymouth, MN

Average humidity in December - Plymouth, MN
  • Average humidity in December: 87%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and May (70%).

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Average rainfall in December
Plymouth, MN

Average rainfall in December - Plymouth, MN
  • Average rainfall in December: 0.98"

The wettest month (with the highest rainfall) is June (3.35").
The driest month (with the least rainfall) is January (0.55").

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Average rainfall days in December
Plymouth, MN

Average rainfall days in December - Plymouth, MN
  • Average rainfall days in December: 3.4 days

The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is January (1.9 days).

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Average snowfall in December
Plymouth, MN

Average snowfall in December - Plymouth, MN
  • Average snowfall in December: 4.45"

The month with the highest snowfall is December (4.45").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Plymouth, MN

Average snowfall days in December - Plymouth, MN
  • Average snowfall days in December: 12.6 days

The month with the highest number of snowfall days is January (15.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Plymouth, MN

Average daylight in December / Average sunshine in December - Plymouth, MN
  • Average daylight in December: 8h and 50min

The month with the longest days is June (Average daylight: 15h and 34min).
The month with the shortest days is December (Average daylight: 8h and 50min).

  • Average sunshine in December: 3h and 18min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in December
Plymouth, MN

Average sunshine days in December - Plymouth, MN
  • Average sunshine days in December: 16.9 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is June (10.9 days).

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Average UV index in December
Plymouth, MN

Average UV index in December - Plymouth, MN
  • Average UV index in December: 1

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in December
Plymouth, MN

Average cloud cover in December - Plymouth, MN
  • Average cloud cover in December: 65

The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 32).

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Average visibility in December
Plymouth, MN

Average visibility in December - Plymouth, MN
  • Average visibility in December: 5mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

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